In order that it is provided the bombardment detection optical fiber sensor, alongside the luminous element, and

摘要

PROBLEM TO BE SOLVED: To manufacture even a lengthy load concentration plate at low cost with excellent dimension accuracy.;SOLUTION: This impact detection optical fiber sensor is equipped with an optical fiber 1 for detecting an impact, a light emitting element connected to one end of the optical fiber 1, a light receiving element connected to the other end of the optical fiber 1, and the load concentration plate 11 provided along the optical fiber 1 and having a plurality of projections formed along the longitudinal direction in order to apply an impact load onto the optical fiber 1. The load concentration plate 11 is equipped with a plurality of holes 13 formed at prescribed intervals in the longitudinal direction of a ribbon-shaped plate 12, and a connection part 14 formed between the holes 13, and has a constitution wherein the upper surface of both ends in the longitudinal direction of the connection part 14 is formed in the curved state, and the connection part 14 forms the projection.;COPYRIGHT: (C)2006,JPO&NCIPI